28121472
28,121,472 is an even composite number composed of four prime numbers multiplied together.
28121472 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of one hundred twenty-eight divisors.
Prime factorization of 28121472:
27 × 33 × 79 × 103
(2 × 2 × 2 × 2 × 2 × 2 × 2 × 3 × 3 × 3 × 79 × 103)See below for interesting mathematical facts about the number 28121472 from the Numbermatics database.
Names of 28121472
- Cardinal: 28121472 can be written as Twenty-eight million, one hundred twenty-one thousand, four hundred seventy-two.
Scientific notation
- Scientific notation: 2.8121472 × 107
Factors of 28121472
Divisors of 28121472
- Number of divisors d(n): 128
-
Complete list of divisors:
1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 64 72 79 96 103 108 128 144 158 192 206 216 237 288 309 316 384 412 432 474 576 618 632 711 824 864 927 948 1152 1236 1264 1422 1648 1728 1854 1896 2133 2472 2528 2781 2844 3296 3456 3708 3792 4266 4944 5056 5562 5688 6592 7416 7584 8137 8532 9888 10112 11124 11376 13184 14832 15168 16274 17064 19776 22248 22752 24411 29664 30336 32548 34128 39552 44496 45504 48822 59328 65096 68256 73233 88992 91008 97644 118656 130192 136512 146466 177984 195288 219699 260384 273024 292932 355968 390576 439398 520768 585864 781152 878796 1041536 1171728 1562304 1757592 2343456 3124608 3515184 4686912 7030368 9373824 14060736 28121472
- Sum of all divisors σ(n): 84864000
- Sum of proper divisors (its aliquot sum) s(n): 56742528
- 28121472 is an abundant number, because the sum of its proper divisors (56742528) is greater than itself. Its abundance is 28621056
Bases of 28121472
- Binary: 11010110100011001100000002
- Hexadecimal: 0x1AD1980
- Base-36: GQQO0
Squares and roots of 28121472
- 28121472 squared (281214722) is 790817187446784
- 28121472 cubed (281214723) is 22238943393903487746048
-
The
square root of 28121472 is 5302.9682254375 -
The
cube root of 28121472 is 304.0973833899
Scales and comparisons
How big is 28121472?- 28,121,472 seconds is equal to 46 weeks, 3 days, 11 hours, 31 minutes, 12 seconds.
-
To count from 1 to 28,121,472 would take you about seventeen weeks!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 28121472 cubic inches would be around 25.3 feet tall.
Recreational maths with 28121472
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The information we have on file for 28121472 includes mathematical data and numerical statistics calculated using standard algorithms and methods. We are adding more all the time. If there are any features you would like to see, please contact us. Information provided for educational use, intellectual curiosity and fun!
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